US Robotics USR5462 User Manual page 29

Advanced Setup
Idle Time, it will be dropped.
(Default: 0 minutes)
Static IP
If your Internet Service Provider has assigned a fixed IP address,
enter the assigned address and subnet mask for the 802.11g 54Mbps
Router, then enter the gateway address of your ISP.
You may need a fixed address if you want to provide Internet
services, such as a web server or FTP server.
25